Fluke 8505A - Page 43

8500
Series
Termination characters cause the execution of a
command string. They are normally placed
at
the
end
of
each
programming statement.
0
Clear the Command (Normally used only with the Bit-Serial Interface
-06
Option.)
Execute the Command String
O
Execute
This
character
is used to
erase
an incorrect
programming
entry
from the command
string buffer,
deleting all characters issued back to,
but not
including, the preceding termination character. A new
command string is then needed to modify the state of
the instrument.
This character is
used
to
cause
the execution of
the
previous command string. The instrument will then
be
in the defined state only; the character will not trigger a
reading or produce a response from the instrument.
When programming
a
string
of
characters,
it is
recommended that the execute character
be used at
frequent intervals; if an error is made, the
string need
then be cleared only back to the last execute
character.
This execute character is also required if
a
command
string longer than 31 characters is
used.
This character
will cause three actions: any previously
entered command
string will
be
executed,
a
reading
will be taken, and
that reading will be transmitted
through the remote
interface.
If
a command string was
not entered immediately preceding this character,
the
instrument will
take and transmit
a
reading in
the last
defined
state.
An exception occurs
when a command string
containing a "Get" command
has been entered; the
instrument will then respond
with the value or status
that was requested
by
the
command string (no reading
will be triggered).
Execute, Trigger, and
when Ready
When issuing a program string
terminated
by
the
"?"
character, the "CR" and/or "LF"
delimiter characters
should be, but do not have
to be
suppressed.
If an error
occurs during the reading,
a
single
"0",
followed
by a
"CR", will
be transmitted. At this
point, status should
be
requested
to determine the cause of the error.
This character is
used to trigger a reading and generate
an interrupt when the
reading is complete.
2A-7